JP7211557B2 - 溶鉄の精錬方法 - Google Patents

溶鉄の精錬方法 Download PDF

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Publication number
JP7211557B2
JP7211557B2 JP2022518956A JP2022518956A JP7211557B2 JP 7211557 B2 JP7211557 B2 JP 7211557B2 JP 2022518956 A JP2022518956 A JP 2022518956A JP 2022518956 A JP2022518956 A JP 2022518956A JP 7211557 B2 JP7211557 B2 JP 7211557B2
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JP
Japan
Prior art keywords
molten iron
refining
iron
charged
converter
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JP2022518956A
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English (en)
Japanese (ja)
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JPWO2022163200A1 (enrdf_load_stackoverflow
Inventor
太 小笠原
雄大 服部
玲 横森
涼 川畑
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JFE Steel Corp
Original Assignee
JFE Steel Corp
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Publication date
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Publication of JPWO2022163200A1 publication Critical patent/JPWO2022163200A1/ja
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/36—Processes yielding slags of special composition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/20—Arrangements of devices for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2300/00—Process aspects
    • C21C2300/08—Particular sequence of the process steps
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F27D2003/162—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel
    • F27D2003/163—Introducing a fluid jet or current into the charge the fluid being an oxidant or a fuel the fluid being an oxidant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
JP2022518956A 2021-01-26 2021-12-17 溶鉄の精錬方法 Active JP7211557B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021010198 2021-01-26
JP2021010198 2021-01-26
PCT/JP2021/046712 WO2022163200A1 (ja) 2021-01-26 2021-12-17 溶鉄の精錬方法

Publications (2)

Publication Number Publication Date
JPWO2022163200A1 JPWO2022163200A1 (enrdf_load_stackoverflow) 2022-08-04
JP7211557B2 true JP7211557B2 (ja) 2023-01-24

Family

ID=82654415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022518956A Active JP7211557B2 (ja) 2021-01-26 2021-12-17 溶鉄の精錬方法

Country Status (7)

Country Link
US (1) US20240060149A1 (enrdf_load_stackoverflow)
EP (1) EP4273273A4 (enrdf_load_stackoverflow)
JP (1) JP7211557B2 (enrdf_load_stackoverflow)
KR (1) KR20230133977A (enrdf_load_stackoverflow)
CN (1) CN116745438A (enrdf_load_stackoverflow)
TW (1) TWI802184B (enrdf_load_stackoverflow)
WO (1) WO2022163200A1 (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005133117A (ja) 2003-10-28 2005-05-26 Jfe Steel Kk 低燐溶銑の製造方法
WO2013108810A1 (ja) 2012-01-19 2013-07-25 Ｊｆｅスチール株式会社 溶銑の予備処理方法
WO2014068933A1 (ja) 2012-10-30 2014-05-08 Ｊｆｅスチール株式会社 溶銑の精錬方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63169318A (ja) 1986-12-29 1988-07-13 Kawasaki Steel Corp 溶銑脱りん法
JPH0472007A (ja) * 1990-07-10 1992-03-06 Nippon Steel Corp 溶鋼製造法
KR101606255B1 (ko) * 2011-07-19 2016-03-24 제이에프이 스틸 가부시키가이샤 용선의 정련 방법
JP2013047371A (ja) * 2011-07-27 2013-03-07 Jfe Steel Corp 溶鉄の精錬方法
JP5948863B2 (ja) * 2011-12-26 2016-07-06 Ｊｆｅスチール株式会社 転炉精錬方法
JP6693536B2 (ja) * 2017-04-18 2020-05-13 Ｊｆｅスチール株式会社 転炉製鋼方法
TWI703219B (zh) * 2018-04-24 2020-09-01 日商日本製鐵股份有限公司 熔銑的脫磷方法
EP3957756B1 (en) * 2019-04-19 2024-02-07 Nippon Steel Corporation Method for producing chromium-containing molten iron

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005133117A (ja) 2003-10-28 2005-05-26 Jfe Steel Kk 低燐溶銑の製造方法
WO2013108810A1 (ja) 2012-01-19 2013-07-25 Ｊｆｅスチール株式会社 溶銑の予備処理方法
WO2014068933A1 (ja) 2012-10-30 2014-05-08 Ｊｆｅスチール株式会社 溶銑の精錬方法

Also Published As

Publication number Publication date
CN116745438A (zh) 2023-09-12
TWI802184B (zh) 2023-05-11
WO2022163200A1 (ja) 2022-08-04
JPWO2022163200A1 (enrdf_load_stackoverflow) 2022-08-04
TW202237864A (zh) 2022-10-01
EP4273273A1 (en) 2023-11-08
EP4273273A4 (en) 2024-07-10
US20240060149A1 (en) 2024-02-22
KR20230133977A (ko) 2023-09-19

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